Overview
The Fastrax M1 21T Steel Pinion Gear (5mm) MOD1 is a precision-engineered replacement drivetrain component designed for RC enthusiasts who demand reliability and performance from their models. Whether you're running a crawler, off-road buggy, or specialist RC vehicle, this steel pinion gear delivers the durability and consistency that serious RC hobbyists expect. This is an essential upgrade or replacement part for anyone maintaining their RC car UK collection to the highest standards.
Steel pinion gears are fundamental to the performance of any RC model, transferring power from the motor to the transmission with minimal wear and maximum efficiency. The Fastrax M1 21T version is specifically engineered to provide the ideal balance between acceleration and top speed for a wide range of applications. Whether you're upgrading from stock gears or replacing worn components, this gear represents a cost-effective way to maintain peak drivetrain performance in your ready to run RC vehicle or custom build.
Built from high-quality steel rather than softer materials, this pinion gear resists wear far better than alternative options, ensuring consistent mesh with your spur gear over extended periods of use. The M1 module specification and precise 5mm bore make this gear compatible with a wide range of RC platforms, making it an invaluable addition to any RC car UK enthusiast's spare parts collection.
Key Features
- 21 Tooth Count — The 21-tooth configuration provides an optimised balance between acceleration and top speed, making this gear suitable for a variety of driving conditions and vehicle types across the RC hobby spectrum.
- Steel Construction — Manufactured from durable steel rather than softer materials, this pinion gear resists wear, stripping, and damage far more effectively than nylon or plastic alternatives, extending the life of your drivetrain and reducing maintenance frequency.
- M1 Module Specification — The M1 module (1mm pitch) ensures compatibility with a vast range of RC spur gears and drivetrain systems, making this a versatile choice for users with multiple vehicles or those upgrading existing setups.
- 5mm Bore — The standard 5mm motor shaft bore ensures a secure fit with most brushless and brushed RC motors commonly used in hobby-grade RC vehicles, providing reliable power transfer without slippage.
- Precision Engineering — Every tooth is machined to exacting tolerances to ensure smooth mesh with mating gears, reducing noise, vibration, and drivetrain losses that would otherwise diminish performance and efficiency.
Technical Performance
The Fastrax M1 21T Steel Pinion Gear represents a significant upgrade over standard plastic or softer metal alternatives commonly found in entry-level RC vehicles. Steel's superior hardness and resistance to deformation make it the material of choice for serious RC enthusiasts who run their models frequently or under demanding conditions. The 21-tooth configuration strikes an excellent balance for general-purpose driving; it provides sufficient low-end torque for acceleration and crawling situations whilst allowing for adequate top-end speed without placing excessive strain on the motor or ESC during extended runs. The M1 module specification is the industry standard for RC pinion gears, ensuring compatibility with spur gears from leading manufacturers and guaranteeing that you can find replacement components easily at any reputable RC car UK retailer. The 5mm bore diameter matches the shaft size of virtually all hobby-grade brushless and brushed motors, from small 540-size motors to larger platform-specific units. When properly meshed with your spur gear—typically set to a clearance of roughly the thickness of a sheet of paper—this pinion will deliver smooth, efficient power transfer with minimal noise and maximum responsiveness to throttle inputs. The steel construction means this gear will maintain its performance characteristics over hundreds of runs, making it an excellent investment for anyone serious about maintaining their RC collection to the highest standard.
What's in the Box
- 1x Fastrax M1 21T Steel Pinion Gear (5mm bore)
Frequently Asked Questions
- What vehicles is the Fastrax M1 21T steel pinion gear compatible with? — This pinion gear is compatible with any RC vehicle using an M1 module drivetrain system with a 5mm motor shaft. This includes a wide range of crawlers, buggies, truggies, and specialist RC models. Compatibility varies by vehicle, so check your manual or contact us to confirm fitment before purchasing.
- Why choose steel instead of plastic pinion gears? — Steel pinion gears offer dramatically superior durability compared to plastic alternatives. They resist stripping, wear, and deformation far more effectively, maintaining consistent mesh with your spur gear over extended use. Whilst slightly more expensive upfront, a quality steel pinion will outlast multiple plastic gears, making it more cost-effective and reliable for serious RC hobbyists.
- How do I know if my pinion gear needs replacing? — Signs that your pinion gear requires replacement include visible teeth damage or rounding, grinding or chattering noises from the drivetrain, loss of power transmission efficiency, or visible wear patterns on individual teeth. Regular inspection during maintenance will help you identify wear before catastrophic failure occurs.
- What is M1 module and why does it matter? — Module refers to the pitch of the gear teeth, with M1 meaning 1mm pitch between teeth. M1 is the industry standard for RC car pinion and spur gears, ensuring compatibility across different manufacturers and models. Using correctly matched module specifications ensures smooth mesh and prevents premature wear.
- Is this suitable for beginners? — Whilst this is a genuine quality component, pinion gear replacement is typically a task for intermediate to experienced RC enthusiasts who understand drivetrain maintenance. If you're new to RC, we recommend consulting your vehicle manual or contacting our team for guidance on fitting and setup.
- How often should I replace my pinion gear? — With proper maintenance, a quality steel pinion gear like this Fastrax component should last many hundreds of runs. Replacement frequency depends on driving intensity, terrain conditions, and how well you maintain proper mesh clearance with your spur gear. Heavy use on abrasive terrain may require more frequent replacement than casual bashing on smooth surfaces.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the FASTRAX M1 21T STEEL PINION GEAR (5MM) MOD1 FASTM1-215 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
- Brand: Fastrax
- Model Number: FASTM1-215
- Product Type: Steel Pinion Gear
- Tooth Count: 21T
- Gear Module: M1 (1mm pitch)
- Bore Size: 5mm
- Material: Steel
- Price: £6.50 (ex VAT £5.42)
- Availability: In Stock
We want to make sure your delivery goes smoothly, so here are some important details about our service:
- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
- Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
- Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
- If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
- We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
- As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
- If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
- For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.
